Add a unary minus operator.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123804 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/CharUnits.h b/include/clang/AST/CharUnits.h
index 9a7b3720e813c13d63ea081ab1d3bddbfa3a22a1..1044fb742a5a61f7b3ee47a39b275397c69d94fb 100644 (file)
--- a/include/clang/AST/CharUnits.h
+++ b/include/clang/AST/CharUnits.h
@@ -132,6 +132,10 @@ namespace clang {
       CharUnits operator- (const CharUnits &Other) const {
         return CharUnits(Quantity - Other.Quantity);
       }
+      CharUnits operator- () const {
+        return CharUnits(-Quantity);
+      }
+
       
       // Conversions.